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T. EARHEART.

Grain Separator.

No. 29,256l Patented July 2 4, 1860.

N. PETERS. Pncwmhegnprmr. wahingmn. n c.

THOMAS EARHEART, OF DONELSON, TENNESSEE.

GRAIN-SEPARATOR.

Specification of Letters Patent No. 29,256, dated July 24, 1860.

To all whom 'it may concern:

Be it known that I, THOMAS EARHEART, of Donelson, in the county of Davidson and State of Tennessee, have invented a new and Improved Grain-Separator; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a side sectional view of my invention taken in the line Fig. 2. Fig.

2, a transverse section of the same taken in the line y, y, Fig. 1.

Similar letters of reference indicate corresponding parts in the two figures.

The object of this invention is to feed the wheat or other grain to the machine in a more regular or uniform manner than usual and also to present the wheat or other grain in its passage through the machine more favorably to the action of the blast, whereby in connection with the usual screen or screens, the grain will be thoroughly separated from all impurities.

The invention consists in the employment or use of a feed roller placed at the discharge orifice of the hopper and using in connection therewith a slide adjusted in a novel way to vary the capacity of the discharge orice.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A represents a case or box in which the working parts of the machine are placed, and B, is a shoe one end of which is secured in the case or box by pins or pivots c, a. The shoe B, has an inclined position and its lower part rests on a pitman b, which is attached to a crank c, one a shaft fl, which is placed transversely in the lower part of the framing of the case or box A. On one end of the shaft d, there is a crank e, to which and a crank f, on a fan shaft g, a connecting rod L., is attached. C, is a fan which is formed in the usual way of radial wings h', attached to the shaft g.

lVithin the shoe B, and directly opposite the fan C, there are placed a series of inclined steps D, which extend the whole width of the shoe B, project one over the other, and extend from just above a screen E, at the lower part of the shoe B, to the upper part of said shoe as shown clearly in FiO. l.

I, is a hopper at the upper part of the case or box A. This hopper has an inclined botton h, the lower or depressed end of which is over the elevated end of the shoe B, and over the highest step D, thereof. At the lower end of the hopper F, and directly opposite the end of the bottom h, there is fitted a slide G, in proper grooves z'. To this slide G, there is attached a rod H, which extends upward, a certain distance is then bent horizontally and passes into the hopper and is connected at y', to a rod 7c, which has a screw thread formed on it the thread passin through or fitting in a nut Z, in the end of the hopper. By turning the rod is, the slide Gr, may be moved back and forth.

At the lower or depressed end of the botton 7L, of the hopper F, there is placed a roller I, which extends the whole width of the hopper and is adjusted snugly to it. Thisroller may be quite small in diameter and its upper edge is nearly flush with the upper surface of the bottom It, of the hopper.

To one end of the shaft g, of the fan C,

there is attached a pinion m, into which a spur wheel n, on a driving shaft J, gears and from this shaft J, the roller I, is driven by a belt o.

The operation is as follows: The grain to be separated passes down the inclined bottom la, of the hopper and is fed down on the highest step D, of the shoe B, by the roller I, the discharge being regulated by adjusting the slide Gr, which is readily effected by turning the rod c. The roller I, insures a regula-r or uniform discharge whether it be greater or less and the grain passes down the steps D, in successive falls and is presented in the most favorable manner to the action of the blast from the fan C, the shake motion of the shoe B, produced by the action of the pitman b, crank c, and

shaft CZ, operated as described causes the I do claim as new and desire to secure by grain to pass down the steps D, to the screen Letters Patent- E. All light impurities are separated from In combination With the roller I, the slide the grain by the blast from fen C, the screen G, When arranged with the rod II, and ro- 5 E7 perforliling itsf usual function of sepatating screw la, for the purpose specied.

retin the eavier oreio'n ortions.

I d?) not claim broadlf alle employment or THOMAS EARHEART' use of a slide G, for regulating the discharge Witnesses: of grain from the hopper F, irrespective of l/VILLIAM BINKLEY, 10 the means for adjusting the slide; but T. E. KELTON. 

